@charset "UTF-8";
#maincontent{
	width:1180px;
	height:900px;
    /* margin-top:2px; */
	/* border:1px solid black; */
	box-sizing: border-box;
    border-box:none;
	/* background-color:black; */
}
#maincontent .fourlone{
	width:240px;
	height:420px;
	/* border:1px solid black; */
	box-sizing: border-box;
    border-box:none;
	background-color:#f0f0f0;
}
#maincontent .fourrone{
	width:935px; 
	height:900px;
	margin-top:5px;
	/* border:1px solid red; */
	box-sizing: border-box;
    border-box:none;
    background-color:#f0f0f0;
}
#maincontent .fourrone .fourronecenter{
	width:915px;
	height:880px;
	margin-left:10px;
	margin-top:10px;
	background-color:#ffffff;
}